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Pilot Study of a New Nerve Grafting Method During Bladder Cancer Surgery to Help Preserve Erections.

Pilot Study of Intraoperative Somatic-Autonomic Nerve Grafting Technique to Preserve Erectile Function in Patients With Bladder Cancer Undergoing Radical Cystectomy

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07140588
Acronym
NR-RC
Enrollment
10
Registered
2025-08-24
Start date
2025-09-30
Completion date
2029-02-28
Last updated
2025-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bladder Cancer Requiring Cystectomy, Erectile Dysfunction Following Radical Prostatectomy

Keywords

Bladder cancer, Nerve grafting, The genitofemoral nerve, radical cystectomy, radical prostatectomy, Erectile function, International Index of Erectile Function-5, Short Form McGill Pain Questionnaire, Clinical Evolution of Erectile Function

Brief summary

This pilot study will evaluate the safety and 1-year erectile function recovery in 10 patients undergoing a novel Nerve Restoring Radical Cystectomy (NR-RC), which includes a genitofemoral nerve graft. Erectile function will be assessed using IIEF-5, SF-MPQ, and CEEF questionnaires at baseline and at multiple post-operative intervals (4 weeks, 3, 6, 12, and 18 months). Safety will be monitored through peri- and post-operative complications, and additional demographic and clinical data will be collected for analysis.

Interventions

PROCEDUREPatients undergoing radical cystectomy will receive a novel NR-RC procedure using a genitofemoral nerve graft to enhance erectile function recovery.

Patients undergoing radical cystectomy will receive a novel NR-RC procedure using a genitofemoral nerve graft to enhance erectile function recovery.

Sponsors

Sir Mortimer B. Davis - Jewish General Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients undergoing standard of care radical cystectomy for bladder cancer * Patients must have preoperative erectile function with a baseline IIEF score of ≥17

Exclusion criteria

* Patients with previous pelvic surgery * Patients with previous pelvic radiotherapy * Patients aged \< 18 years at diagnosis * Legally incapable patients * Patients who are unable to complete questionnaires and have no companion to help complete them * Patients undergoing a concomitant cancer surgery * Patients with pre-existing neurologic disease

Design outcomes

Primary

MeasureTime frameDescription
Adverse events measured by the Clavian-Dindo classificationThrough study completion, an average of 18 months (5 different time points)The primary outcome is specifically the safety of the operation measured by adverse events as defined by the Clavian-Dindo classification. The measurement varies from Grade I (Best possible outcome) to Grade V (Worst possible outcome). Grade I Deviation from normal p/o course. No pharmacological or surgical treatment, endoscopic or radiological interventions were required. Acceptable therapeutic drugs such as anti-emetics, antipyretics, analgesics, diuretics,electrolytes, physiotherapy. Wound infections, small abscess requiring incision at bedside. Grade II Normal course altered. Pharmacological management other than in Grade I. Blood transfusions and total parenteral nutrition are also included. Grade III Complications that require intervention of various degrees. Grade IV Complications threatening life of patients (including Central Nervous System complications), requiring Intensive Treatment Unit support. Grade V Death of a patient

Secondary

MeasureTime frameDescription
Clinical Evolution of Erectile Function (CEEF)4 weeks post- NR-RCA one question visual questionnaire evaluating the erectile function, from 0 (no erection - Worst Possible Outcome) to 10 (sexual intercourse - Best Possible Outcome).
International Index of Erectile Function-5 (IIEF-5)4 weeks post- NR-RCThe IIEF-5 is used to determine the prevalence of erectile dysfunction (ED) in a non-selected population using the abridged 5-item version of the International Index of Erectile Function (IIEF-5) as a diagnostic tool. Each answer has a score from 1 (very low) to 5 (very high). The sum of all the answers gives a final result of 1-7 (Severe ED - Worst Outcome), 8-11 (Moderate ED), 12-16 (Mild-moderate ED), 17-21 (Mild ED) and 22-25 (No ED - Best Outcome).
Short Form McGill Pain Questionnaire (SF-MPQ)4 weeks post- NR-RCThe SF-MPQ was designed to measure post-surgical pain. The main component of the SF-MPQ consists of 15 descriptors (11 sensory; 4 affective) which are rated on an intensity scale as 0 = none, 1 = mild, 2 = moderate or 3 = severe. Three pain scores are derived from the sum of the intensity rank values of the words chosen for sensory, affective and total descriptors. The sum of the scores gives a range of outcomes; a score of 0 (no pain - Best Possible Outcome) to a score of 45 (Most severe pain - Worst Possible Outcome)

Contacts

Primary ContactVictor McPherson, MD, MSc, FRCSC
victor.mcpherson@mcgill.ca1-514-340-8222 ext 23536

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026